Title:
FOUNTAIN PEN HAVING DOUBLE PEN CORE STRUCTURE
Document Type and Number:
Japanese Patent JP2017213767
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fountain pen that has a double pen core structure and that is capable of preventing ink dropping or jumping-out.SOLUTION: A fountain pen 1 having a double pen core structure is configured such that a pen core 6 has an outer core 4 and an inner core 5, an air groove 10 is formed between a through-hole 4b of the outer core 4 and the inner core 5 in a state where the inner core 5 is inserted into the through-hole 4b formed in the outer core 4, and an ink groove 9 is formed by a vertical groove 5a of the inner core 5, a vertical groove 4a of the outer core 4, and a cut 7a of a pen 7. This fountain pen is provided with: a diaphragm part 10d that narrows a flow path of the air groove 10 by forming a bulged part 5e on the front side of the inner core 5 opposed to the pen 7; and a communication groove 5f that communicates the air groove 10 with the diaphragm part 10d in the inner core 5.SELECTED DRAWING: Figure 5
Inventors:
YOSHINO KIYOTAKA
Application Number:
JP2016108901A
Publication Date:
December 07, 2017
Filing Date:
May 31, 2016
Export Citation:
Assignee:
PILOT CORP
International Classes:
B43K5/18
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